The 2MASS Wide-Field T Dwarf Search. V. Discovery of a T Dwarf via Methane Imaging
Copyright policy )The 2MASS Wide-Field T Dwarf Search. V. Discovery of a T Dwarf via Methane Imaging
We present the discovery of a T dwarf, 2M2151-4853, via differential imaging through methane filters. The filters are designed to highlight the strong absorption in the H band, due to methane found in the atmospheres of T dwarfs, and provide a very efficient means of searching for them. Subsequent J and H band spectroscopy confirms 2M2151-4853 as a T dwarf of type T4.5. It has an estimated spectrophotometric distance of 18 +/- 3 pc, and an estimated tangential velocity of v=50 +/- 10 km/s.
Accepted for publication in AJ. 8 pages, 4 figures
- UNSW Sydney Australia
- Infrared Processing and Analysis Center United States
- American Academy of Ophthalmology United States
- American Museum of Natural History United States
- California Institute of Technology United States
anzsrc-for: 0201 Astronomical and Space Sciences, 570, Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics
anzsrc-for: 0201 Astronomical and Space Sciences, 570, Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics
selected citations These citations are derived from selected sources.This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).16 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10%
Citations provided by BIP!Popularity provided by BIP!